Cardiff Blues are hoping to agree new long-term deals with international duo Sam Warburton and Leigh Halfpenny.

The Grand Slam heroes both have another season to run on their existing deals but the Blues are keen to secure their services beyond the 2013-14 season in a bid to prevent them becoming the latest Welsh stars to be lured overseas.

Blues chief executive Richard Holland hopes to bring yet more stability to the playing squad by tying down arguably their most-prized assets. "What we are trying to do at the moment is not have a repeat of the scenario of the beginning of this year when we had 15 players leaving," Holland told the Western Mail. "So we are already talking to players who are coming out of contract in 2014 to extend their services beyond that date.

"It's a case of looking to retain everyone who Phil (Davies) thinks is pivotal to the Blues future. Conversations are taking place. We have got time on our side, but we certainly recognise we need to have those conversations now. That can only put us in a stronger position for the future."

The Blues are also busy securing the services of players who come out of contract at the end of this season. "A lot of them are done," said Holland. "We have got a lot of announcements to make in the coming weeks. Some are still in discussion and negotiation."

However, it seems that a reported deal to bring Wales and Lions prop Gethin Jenkins back to the Blues from Toulon looks unlikely to materialise. Jenkins has struggled for first-team opportunities at the French club where Andrew Sheridan is the preferred loose-head berth.

"We've had conversations with Gethin's people and unfortunately we haven't been able to reach an agreement with them," said Holland. "So there's no news on that front."